Key Product Details

Species Reactivity

Human

Applications

Flow Cytometry, Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Frozen, Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG2A Clone # 303F1.14

Concentration

0.5 mg/ml

View all TLR8 Antibodies »

Product Specifications

Immunogen

TLR8/CD288 was used as immunogen.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG2A

Scientific Data Images for TLR8 Antibody (303F1.14)

Immunohistochemistry-Frozen: TLR8 Antibody (303F1.14) [DDX0480P-100]

Immunohistochemistry-Frozen: TLR8 Antibody (303F1.14) [DDX0480P-100]

Immunohistochemistry-Frozen: TLR8 Antibody (303F1.14) [DDX0480P-100] - IF staining of human tonsilcryosection with 303F1-A488
Flow Cytometry: TLR8 Antibody (303F1.14) [DDX0480P-100]

Flow Cytometry: TLR8 Antibody (303F1.14) [DDX0480P-100]

Flow Cytometry: TLR8 Antibody (303F1.14) [DDX0480P-100] - TLR8 expression on B-CLL(Arvaniti E et al, 2011)
Immunohistochemistry-Frozen: TLR8 Antibody (303F1.14) [DDX0480P-100]

Immunohistochemistry-Frozen: TLR8 Antibody (303F1.14) [DDX0480P-100]

Immunohistochemistry-Frozen: TLR8 Antibody (303F1.14) [DDX0480P-100] - Analysis using the Alexa Fluor (R) 488 conjugate of DDX0480P-100. Staining of human tonsil frozen section.
View 2 more images

Applications for TLR8 Antibody (303F1.14)

Application
Recommended Usage

Flow Cytometry

1:10-1:1000

Immunohistochemistry

1:10-1:500

Immunohistochemistry-Frozen

1:10-1:500

Western Blot

1:100-1:2000

Formulation, Preparation, and Storage

Purification

Ion exchange chromatography

Formulation

Tris-NaCl (pH 8.0)

Preservative

No Preservative

Concentration

0.5 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at -20C. Avoid freeze-thaw cycles.

Background: TLR8

Toll-like receptor 8 (TLR8) is a member of the TLR family of receptors that play a role in innate immune system activation and the recognition of pathogen-associated molecular patterns (PAMPs) or damage-associated molecular patterns (DAMPs) (1,2). TLRs are type I membrane receptors that can be expressed on either the cell surface or internally, on endosomes (1,2). TLR8 is an endosomal receptor and is activated by pathogenic single stranded (ss) RNA (1-3). TLR8 is located on the X chromosome and is expressed mostly in monocytes/macrophages, neutrophils, and myeloid dendritic cells (1-3). Structurally, TLR8 consists of an extracellular domain, a cysteine-rich region, and transmembrane domain, and a Toll/Interleukin-1 receptor homology (TIR) domain (3,4). The extracellular domain contains a N-terminal leucine rich repeat (LRRNT) and a C-terminal LRR (LRRCT) which have 26 LRRs between them, each approximately 20-30 amino acids (aa), and a Z-loop between LRR14 and LRR15 (3). The primary isoform of the human TLR8 is synthesized as a protein 1041 aa in length with a theoretical molecular weight of ~120 kDa (4).

TLR8 is highly similar to TLR7 and both pathways are mediated by the adapter protein MyD88 to signal through IFN regulatory factor 7 (IRF7) and nuclear factor (NF)-kappaB (1-3,5). However, TLR7 recognizes guanosine and GU-rich ssRNA, while TLR8 recognizes uridine and AU-rich sequences (2,5). TLR7/TLR8 agonists, including derivatives of the immunostimulatory imiquimod, have been shown to be a promising cancer therapy capable of providing anticancer signals to antigen presenting cells (APCs), with many agonists being tested in both pre-clinical and clinical trials (6). Similarly, studies suggest that agonists for TLR8, in combination with other individual TLR agonists and antagonists, may also be useful for treating inflammatory allergic diseases, such as allergic rhinitis (7).

References

1. Sakaniwa, K., & Shimizu, T. (2020). Targeting the innate immune receptor TLR8 using small-molecule agents. Acta crystallographica. Section D, Structural biology, 76(Pt 7). https://doi.org/10.1107/S2059798320006518

2. Cervantes, J. L., Weinerman, B., Basole, C., & Salazar, J. C. (2012). TLR8: the forgotten relative revindicated. Cellular & molecular immunology. https://doi.org/10.1038/cmi.2012.38

3. Ohto, U., Tanji, H., & Shimizu, T. (2014). Structure and function of toll-like receptor 8. Microbes and infection. https://doi.org/10.1016/j.micinf.2014.01.007

4. Uniprot (Q9NR97)

5. Jannuzzi, G. P., de Almeida, J., Paulo, L., de Almeida, S. R., & Ferreira, K. S. (2020). Intracellular PRRs Activation in Targeting the Immune Response Against Fungal Infections. Frontiers in cellular and infection microbiology. https://doi.org/10.3389/fcimb.2020.591970

6. Frega, G., Wu, Q., Le Naour, J., Vacchelli, E., Galluzzi, L., Kroemer, G., & Kepp, O. (2020). Trial Watch: experimental TLR7/TLR8 agonists for oncological indications. Oncoimmunology. https://doi.org/10.1080/2162402X.2020.1796002

7. Golshiri-Isfahani, A., Amizadeh, M., & Arababadi, M. K. (2018). The roles of toll like receptor 3, 7 and 8 in allergic rhinitis pathogenesis. Allergologia et immunopathologia. https://doi.org/10.1016/j.aller.2017.09.026

Long Name

Toll-like Receptor 8

Alternate Names

CD288

Gene Symbol

TLR8

Additional TLR8 Products

Product Documents for TLR8 Antibody (303F1.14)

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

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Product Specific Notices for TLR8 Antibody (303F1.14)

This product is manufactured by Eurobio Scientific (formerly Dendritics) and distributed by Novus Biologicals.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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